String concatenation in javascript?

function(now) {
			logo.css('transform', 'translate(0px, ' + now + ' px)');
}

in this code how is now getting concatenated, i cant understand that part :rolleyes:

Hi,

maybe an example will help:

function myFunc (now) {
  logo.css('transform', 'translate(0px, ' + now + ' px)');
}

myFunc(20)

Will result in:

logo.css('transform', 'translate(0px, ' + 20 + ' px)');

which is the same as:

logo.css('transform', 'translate(0px, 20px)');

Make sense?

Thanks its clear now :slight_smile: